WorksheetsIGCSE Physics revision
Total questions: 30
Worksheet time: 1hrs 3mins
Iodine-131 has a half life of 8.07 days. What fraction of a sample of Iodine-131 is left unchanged after 16.14 days?
1/2
1/4
1/8
1/16
Finish the following alpha decay reaction:
Which type of radiation releases an electron?
Alpha radiation
Beta radiation
Gamma radiation
Theta radiation
What is the current through the battery?
450 A
2 A
20 mA
9 A
If a 75 W light bulb operates at a voltage of 120 V, what is the current in the bulb?
0.63 A
1.6 A
9.0 x 103 A
1.1 x 10-4 A
Volt meters are connected in.....
series
parallel
During a physics lab, a plastic strip was rubbed with cotton and became positively charged. The correct explanation for why the plastic strip becomes positively charged is that ...
the plastic strip acquired extra protons from the cotton.
protons are created
protons are transferred from the plastic to the cotton
electrons are transferred from the plastic to the cotton
According to the graph how fast does the person travel in the first 5 seconds?
2 m/s
10 m/s
12.5 m/s
1 m/s
Just after the parachutist jumps out of the plane (before the parachute opens). The relative forces on them are:
downward weight balances the upward friction force
upward friction is constant
downward weight is greater that the upward friction
upward friction is greater than the downward weight
A submarine is found 20 meters below the surface of the sea. The density of sea water is 1020 kg m-3 and g = 10 m/s2 Calculate the pressure due to the sea water acting on the submarine?
20.4 Pa
2.04 x 103 Pa
2.04 x 102 Pa
2.04 x 105 Pa
2.04 x 10-2 Pa
What types of waves transfer energy perpendicular to the direction of oscillations?
Longitudinal waves
Transverse waves
Sound waves
P-waves
What is the speed of a wave that has a wavelength of 2 and a frequency of 2.5 Hz?
2.5 m/s
5 m/s
4.5 m/s
6 m/s
What would be the effect on the particles if the gas is heated?
They would slow down
They would stop moving
They would speed up
There would be no effect
How far does the car travel at constant speed?
75 m
150 m
200 m
250 m
How far does the car travel whilst decelerating
75 m
150 m
200 m
250 m
Calculate the mass of a object with density 2 g/cm3 and dimensions 10 cm x 5 mm x 1 m
0.04 g
1000 g
100 g
25 g
Final velocity is 5m/s, initial velocity is 1m/s, time taken for change is 2 seconds. Calculate the acceleration, with correct units
1m/s
2m/s
1m/s2
2m/s2
Electrical current is:
the flow of neutrons
the flow of ions
the flow of electrons
the flow of charge
What is an alternating current?
A current that flows back and forth in a wire.
A current that always flows in one direction.
A potential difference that flows back and forth in a wire.
A potential difference that always flows in one direction.
The current in a SERIES circuit:
Is the same everywhere
Gets split between the components
Is measured in volts
Gets stopped by resistors
All waves can both reflect and refract. True or False?
True
False
As a ray light ray travels from a less dense to a more dense optical medium (e.g. air to glass)
the incident ray travels straight on
the incident ray bends away from the normal
the incident ray travels down the normal
the incident ray bends towards the normal
Convection cannot happen in solids because:
the particles are vibrating
because they are fluids
because the particles are bonded together and cannot flow
Because they have a high melting point
Kinetic energy is calculated using
m x g x h
Force x distance
1/2 mass x velocity
1/2 mass x velocity x velocity
A uniform magnetic field can be produced between 2 permanent magnets. Which of the following arrangements of magnets will produce the field shown?
A
B
C
D
The diagram shows a coil of wire with a current flowing through it in the direction shown by the arrows. The coil is between 2 magnets as shown.
Using Fleming's Left hand Rule, which way will the coil move?
upwards
downwards
rotate clockwise
rotate anticlockwise
What does 'induction' mean?
The production of a force on a conductor due to a magnetic field
The production of a force on a conductor due to friction
The production of a voltage in a conductor due to a magnetic field
The production of a voltage in a conductor due to friction
